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path: root/nixops/modules/websites/tools/mastodon/mastodon.nix
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{ env, ruby_2_6, bundlerEnv, defaultGemConfig, yarn2nixPackage, fetchedGithub, stdenv, writeText, pkgs }:
let
  varDir = "/var/lib/mastodon_immae";
  socketsDir = "/run/mastodon";
  gems = bundlerEnv {
    name = "mastodon-env";
    ruby = ruby_2_6;
    gemset = ./gemset.nix;
    gemdir = (fetchedGithub ./mastodon.json).src;
    groups = [ "default" "production" "test" "development" ];
    gemConfig = defaultGemConfig // {
      redis-rack = attrs: {
        preBuild = ''
          sed -i 's!s\.files.*!!' redis-rack.gemspec
          '';
      };
      tzinfo = attrs: {
        preBuild = ''
          sed -i 's!s\.files.*!!' tzinfo.gemspec
          '';
      };
      cld3 = attrs: {
        buildInputs = with pkgs; [ protobuf protobufc pkgconfig ];
      };
      idn-ruby = attrs: {
        buildInputs = with pkgs; [ libidn ];
      };
      rpam2 = attrs: {
        buildInputs = with pkgs; [ pam ];
      };
    };
  };
  yarnModules = let
      info = fetchedGithub ./mastodon.json;
      packagejson = pkgs.runCommand "package.json" { buildInputs = [ pkgs.jq ]; } ''
        cat ${info.src}/package.json | jq -r '.version = "${info.version}"' > $out
        '';
    in
      yarn2nixPackage.mkYarnModules rec {
        name = "mastodon-yarn";
        pname = name;
        version = info.version;
        packageJSON = packagejson;
        yarnLock = "${info.src}/yarn.lock";
        yarnNix = ./yarn-packages.nix;
        pkgConfig = {
          uws = {
            postInstall = ''
              npx node-gyp rebuild > build_log.txt 2>&1 || true
              '';
          };
        };
      };
  mastodon = stdenv.mkDerivation (fetchedGithub ./mastodon.json // rec {
    installPhase = ''
      cp -a . $out
      cp -a ${yarnModules}/node_modules $out
    '';
    buildInputs = [ yarnModules ];
  });
  keys.tools-mastodon = {
    destDir = "/run/keys/webapps";
    user = "mastodon";
    group = "mastodon";
    permissions = "0400";
    text = ''
      REDIS_HOST=${env.redis.host}
      REDIS_PORT=${env.redis.port}
      REDIS_DB=${env.redis.db}
      DB_HOST=${env.postgresql.socket}
      DB_USER=${env.postgresql.user}
      DB_NAME=${env.postgresql.database}
      DB_PASS=${env.postgresql.password}
      DB_PORT=${env.postgresql.port}

      LOCAL_DOMAIN=mastodon.immae.eu
      LOCAL_HTTPS=true
      ALTERNATE_DOMAINS=immae.eu

      PAPERCLIP_SECRET=${env.paperclip_secret}
      SECRET_KEY_BASE=${env.secret_key_base}
      OTP_SECRET=${env.otp_secret}

      VAPID_PRIVATE_KEY=${env.vapid.private}
      VAPID_PUBLIC_KEY=${env.vapid.public}

      SMTP_DELIVERY_METHOD=sendmail
      SMTP_FROM_ADDRESS=mastodon@tools.immae.eu
      SENDMAIL_LOCATION="/run/wrappers/bin/sendmail"
      PAPERCLIP_ROOT_PATH=${varDir}

      STREAMING_CLUSTER_NUM=1

      RAILS_LOG_LEVEL=warn

      # LDAP authentication (optional)
      LDAP_ENABLED=true
      LDAP_HOST=ldap.immae.eu
      LDAP_PORT=636
      LDAP_METHOD=simple_tls
      LDAP_BASE="dc=immae,dc=eu"
      LDAP_BIND_DN="cn=mastodon,ou=services,dc=immae,dc=eu"
      LDAP_PASSWORD="${env.ldap.password}"
      LDAP_UID="uid"
      LDAP_SEARCH_FILTER="(&(%{uid}=%{email})(memberOf=cn=users,cn=mastodon,ou=services,dc=immae,dc=eu))"
    '';
  };

    # FIXME: build machine will contain some passwords in the nix store
    railsRoot = stdenv.mkDerivation {
      name = "mastodon_immae";
      inherit mastodon;
      builder = writeText "build_mastodon_immae" ''
        source $stdenv/setup
        set -a
        ${keys.tools-mastodon.text}
        set +a
        cp -a $mastodon $out
        cd $out
        chmod u+rwX . public
        chmod -R u+rwX config/
        sed -i -e 's@^end$@  config.action_mailer.sendmail_settings = { location: ENV.fetch("SENDMAIL_LOCATION", "/usr/sbin/sendmail") }\nend@' config/environments/production.rb
        RAILS_ENV=production ${gems}/bin/rails assets:precompile
        rm -rf tmp/cache
        ln -sf ${varDir}/tmp/cache tmp
        '';
      buildInputs = [ gems gems.ruby pkgs.nodejs pkgs.yarn ];
    };
in
  {
    inherit railsRoot keys varDir socketsDir gems;
    nodeSocket = "${socketsDir}/live_immae_node.sock";
    railsSocket = "${socketsDir}/live_immae_puma.sock";
  }